Mathematics
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この比の値がどうやって12:5になるのか教えてください🙏

212 =D18:[18 =12:5 12:5

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✨ Best Answer ✨

地道に計算します。

18 : (18 - 21/2)
= 18 : 15/2
= 36 : 15
= 12 : 5

a

ありがとうございます😭

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